Wire pointer



Decf 29 J. W. LAUREN WIRE POINTER Filed July 10, 1922 2 Sh-eets-Sheet 1 9 M Z? f /Z m /Z 2d w 5 /s iT i il.

f2-:2 1 y Z WIE Egg E w21 :1g MM l www Patented Dec. 29, 1925.

JOHN W. LAUREN, OF STERLING, ILLINOIS.

WLBLE POINTER.

Application led July 10, 1922. Serial No. 573,851;

To all whom/it may Gomera:

Be it known that I, JoHN W. LAUREN, a citizen of the Republicl of Finland, and a resident of the city of Sterling, in the county l of Whiteside and State of Illinois, have invented certain new'v-and useful Improvements in a Wire Pointer; and I do hereby .declare that theffollowingis a full, clear, and exact description of the same, reference 4beingyhad -V to the accompanying drawings, and to. the.` numerals ,of reference marked thereon, which form apart kof this speciication. .f g, f l j, Y,

This invention relatesto a wire pointing machine in which the blunt end of a wire isadapted t0 be*` inserted and reduced in diameter. r j v `In .the manufacture vof wire tubes and small rods which'are `drawn through a die,

and also in the Qmanufacture of rods by rolling, it is necessary to reduce the end of the wirekor rods by an operation known-as pointing, so that they may be inserted through the die' for clamping' engagement with .the mechanism that draws them through the die.l In the past, hydraulic pointers and machines ,having grooved rollers lin which the wiresy had to be turned over were used for sucha purpose. These prior devices were more or less cumbersome 'and slowin operation and did not always point ithe wire in a truek axial direction, and a more or less tapering pointwouldfbe provided which would not afford the best grip or afford an even pull. j v

It is an object kof this invention to provide a wire pointingmachine in which the above noted objections are overcome, and'in which the wire is pointed to any desired 40 length in a true axial, direction without the necessity ofturning. it during the pointing operation, and in which the pointing operation is carriedon very rapidly and with but little effort on the part of the operator.

With these and other objectsl in view which will become more apparent in the following descriptionandrdisclosures in the drawing, this invention comprises the'novel mechanism and combinations hereinafter described and more particularly pointed out anddefined in the appended claims.

the ,acCQmpanying drawings which ilf lustrate a preferred embodiment of this in-` vention and in which similar reference numerals refer to similar features in the different views:

n Figure 1 is a vertical sectional view of the fmachine with the motor in elevation.

Figure 2 is a sectional view of the rotor in detached form.

Figure 3 is an end elevation of the machlne. l l

Figure `4 is a part elevational and fpart cross-sectional view of the machine illustratinggthe arrangement of the rollers.

As shown on the drawings: e

j In the exempliication of this invention, there is illustrated a spider comprising two separable sections 1 and 2. The section l. consists of a hollow bearing or journal 1'L having a plurality of equally spaced and radially extending arms' 3 at its inner end. The arms 3 terminate in longitudinally extending portions 3*i provided with bolt receivlng apertures and reversely curved upon their inner surfaces. The inner end of the section 15 is also provided with a plurality of equally spaced and radially extending arms 4 intermediate the arms 3; the arms 4 being provided with suitable journal apertures. i Y

vThe section 2 of the spider consists of a journal or bearing neck 2a having a conical wire receiving aperture 5 extending axially therein which terminates in a cylindrical hollow bore 6. The inner end of this section is fashioned similar to the section l with radial arms 3 having the horizontal apertured rportions 3a with intermediate arms 4.

v The arms 3 and 4 of the two sections are similarly rarranged and spaced, so that they may be brought into opposed relation and the two sections secured together by bolts 7 extending through the apertured arm portions 3. In the present instance, each section is provided with four radialk arms 3' and four intermediate equally spaced radial arms4, j

Journals or shafts 8 are rotatably journalled in the radial arms 4 and circumferentially spaced' upon a circle having the axis of the spider asa center and spaced circular disks or elements .9 are integrally united,

with the shafts S for rotation therewith. The corresponding disks 9 are mounted on or integral with diametrically opposite shafts 8 and are positioned in the same vertical plane as shown in VFigure 1 so as to .coact with respect to a wire passed therebetween, but the coacting disks on one pair of diametrically opposite shafts S' are positioned intermediate the coacting disks of the other pair of diametrically opposite shafts The4 peripheries of said disks 9 may be smooth or may have a shallow continuous thread-cut in their surfaces.

Theouter peripheries ofi the disks 9 have a gentle outward slopeior bevel in the same direction with respect to the axes of said disks. This outward slope extends fromrthe left to the right* asVieWedin'Figure land the disks .from left to. right' are of gradu# ally increasing diameter whereby a` gradu ally tapered way or. opening'is providedr be-A tween the peripheries of the disks or elements 9, the way being concentric withthe passages through the journal bearings of the rotor.

The above-described spider with'the rot-at'- able disks supported. thereby constitutes a rotor which is rotatably mountedlin a cylindrical housing 10 having asupporting'base 11' (Fig, 4); The front endof 'the housing 10 is providediwith' a bearingaperture for receiving thejournal2a ofthe rotor, while the rear endofthe'.housing 10 is closed by a plate 11, having an inner rabbetediinargin which fits the open ,end` of` the housing 10 toprovide a iiiiidltight fit. The plate 11 vis provided with a suitable journal beearing to receive the journal" 1a; of the rotor. The inner front wall oflthe housing 10 adjacent the bearing aperture is provifdedwitlra circular l1ea.d"12and the plate llisprovided with a similar circular head 312.' These heads actas end-i thrust bearings for the shafts 8, as can be readily seen by an' in* spection of Figure 1. The liousingf10exf tendssome distance below-the disks or ele,- ments 9 to provide a` lubricant chamber for supplying lubricant to `the disks.A

The journal 1a of' the rotor projects beyond the journal bearing of theplatell'for the purpose of receiving a gear or sprocket 13 which may be suitably keyed thereon. In the present instance, in. whichsprocket gearing is used, asprocket chain 14 is trained over the sprocket ,wheellan'd also over a sprocket wheel'l secured upon a motor shaft, the motor 16 of which is supported upon the housinglO.

In the operation-of the machine, the nio tor 16 is started to drive the rotorat a very highrate of speed,`-`,th'e wire to-be pointed is then inserted through `the conical boreof the rotor vand pushedbetween the ele1nents.9 which are bodily rotated by-the rotor and which have relative rotation with respect to the rotor. The action of the elements 9 on the wire will quickly reduce the diameter thereof by causing an elongation thereof. The action of the element 9 on the wiretis a kind* of squeezing action which uniformly reduces the diameter ofthe wire by elongating the same, so that a pointed wirefwvillyhave the `shape as illustrated by the specimen 17 in Figure 1, which has just been acted upon by the revolving elements 9. The tendency of the Wire to become lockedbetween'the disks 9 so as to bodily rotate with the rotor and twist is overcome by the relative rotation ofthe disks 9with respect to the` rotor; The action of the disks 9 tends to rotate thewire'in a'direction reverse to .the rotation of the rotor.v The end of a` wire may befpointed to# any de; sired length as is apparent, andwhen-it'` has beeny sufficiently pointed, itI maybe readily withdrawn from the machine anda new-one inserted.y

The machine ofthis inventionA may be conveniently used for reducingthe-diameter off'rods or tubes whichfare producedbythe hot rollingprocess, the machine beinggpositioned toreceive .the rods-l directlyfrom the rolls, and after the diametersY of the rods have-been reduced thereby, they-may be wound directly upon a suitable reel. i

Fromy the foregoing; itwilli-'be apparent thatlthis invention broadly comprises a' rotorhaving f relatively rotatable elements supported thereinl betweenwvhich the endof Va wire, rod, or tube'may be speedilyreduced without tlie necessity of"manually-'turning thefwirefandinfwhich the end ortheentire length ofthe wire, rod, or tube ispointed or reducedV in a true axiali'directi-on.

l am aware `thatnumerous details ofconstruction may he varied" through aV wide range without'departing from -the principles ofthisinvention, andV I' therefore do not purpose limiting the patent grantedihereon otherwiseLthan necessitated yby the prior art.

IE claim as my invention:

1. In a wire pointing machine, a housing having end journal bearings andfa hibricant chamber, a rotor, having hollow'endjournals mounted in'saidbearings, saidirot'or having radiallyextending` arms, shafts journalled in said arms, disk rollers securedupon-said shafts andadaptedfor passing through the lubricantin said chamber and means for rotat-ing said rotor.

2; I'na wire pointing machine, a housing having Va lubricant chamber and, end .journal bearings, a rotor having hollow end journals mounted. in said: bearingsa plurality of circumferentially spaced shafts car'- ried by said rotor, bevelled disk' rollers of gradually increasing diameter to. define a tapered way upon said shafts. and adapted for passing througlr the lubricant in said chamber and lneansfor rotating said rotor.

lll)

3. In a wire pointing machine, a stationary housing having a lubricant chamber, a rotor journalled in said housing and having an axial opening for the passage of a Wire, a plurality of shafts carried by said rotor, each shaft supporting a series of bevelled rollers of gradually increasing diameter to define a tapered Way, said rollers being adapted for passing through the lubricant in said chamber, and means for rotating said rotor.

In testimony whereof I have hereunto subscribed my name.

JOHN W. LAUREN. 

